Marital Intimacy

One of my Favorite talks given about intimacy is by Elder Holland and it is entitled "Of Souls, Symbols, and Sacraments." Here are some of the quotes that explain the meaning of marital intimacy.
Intimacy is a symbol of total unity. "Such an act of love between a man and a woman is-or certainly was ordained to be-a symbol of total union: union of their hearts, their hopes, their lives, their love, their family, their future, their everything. It is a symbol that we try to suggest in the temple with a word like seal." 
"But such a total, virtually unbreakable union, such an unyielding commitment between a man and a woman, can only come with the proximity and permanence afforded in a marriage covenant, with the union of all that they possess--their very hearts and minds, all their days and all their dreams." 
"And the external symbol of that union, the physical manifestation of what is a far deeper spiritual and metaphysical bonding, is the physical blending that is part of--indeed, a most beautiful and gratifying expression of--that larger, more complete union of eternal purpose and promise." 
"In this ultimate physical expression of one man and one woman they are as nearly and as literally 'one' as two separate physical bodies can ever be. It is in that act of ultimate physical intimacy we most nearly fulfill the commandment of the Lord given to Adam and Eve, living symbols for all married couples, when he invited them to cleave unto one another only, and thus become 'one flesh' (Genesis 2:24)." 
This is another quote that I love by Elder Packer from his talk, "The Fountain of Life."
"Participation in the mating process offers an experience like nothing else in life. When entered into worthily, it combines the most exquisite and exalted physical, emotional, and spiritual feelings associated with the word love. Those feelings and the lifelong need for one another bind a husband and wife together in a marriage wherein all of the attributes of adult masculinity are complemented by the priceless feminine virtues of womanhood."